Pavement plant



July 28, 1925.

1,548,014 c. F. Hl-:Tlyi-IERINGTON PAVEMENT PLANT Filed May 4. 1922 3 4Sfme'ts- Sizeet 1 abtozmu July 28, 1925.

C. F. HETHERINGTON PAVEMENT PLANT 3 Sheets-Sheet 2 Filed Hay 4. 1922 saeeoaeaaeosaaoseeoeaos` Patented July 28, 1925.

UNITED STATES PATENT OFFICE.

CARL F. HETHERINGTON, OF INDIANAPOLIS7 INDIANA, ASSIGNOR T0 THE ILINIIII'LSI-s FIED ASPHALT COMPANY, OF INDIANAPOLIS, INDIANA, A CORPORATION OF IN- DIANA.

PAVEMENT PLANT.

T all whom it may concern:

Be it known that I, CARL F. HETHERING- TON, a citizen of the United States, residing at Indianapolis, in the county of Marion and State of Indiana, have invented a new and useful Pavement Plant, of which the following is a specification.

My invention relates to improvements in mixing machines and is particularly designed for asphalt mixing machines. l

One of the objects of the invention is to provide a mixing machine which may be readily disassembled for transportation and again assembled for operating purposes.

In the embodiment of the invention illustrated:

Fig. 1 is a side elevation of a mixing machine embodying the features of my invention;

Fig. 2 is a front elevation thereof;

Fig. 3 is an enlarged detail view of one of the elevators;

Fig. 4 is a section on the line 4-4 of Fig. 2; b Fig. 5 is a detail section of the storage Fig. 6 is an enlarged detail view of the top of one of the elevators.

Fig. 7 is a detail sectional view on the line 7-7 of Fig. l; and

Fig. 8 is a detail sectional view on the line 8 8 of Fig. 1.

The material for which the structure to be described is articularly designed to handle is what is lnown as emulsied asphalt and comprises, generally speaking, a mixture of rough material such for instance as sand or gravel or a mixture of both with an emulsiied bituminous material. These two materials being mixed together to be laid to form roads and pavements.

In the structure illustrated I provide a storage bin 9 which isadapted to receive from either or both of the air of elevators 10 and 11 the rough material or sand and stone. This bin delivers into a weigh box 12 which is ada ted to measure the material. The weigh Ibox in turn discharges into the mixing machine 14 which in turn is arranged to' discharge into a vehicle or other device adapted to be located beneath the mixing machine for the purpose of receiving material.

The storage bin, weigh box, mixing machine, etc., are mountedupon a supporting 1922. Serial No. 558,551.

platform comprising suitable supporting or plank members secured between the I beams 15, which comprise the two side and two end members of the platform. The floor beams are secured between these I beams and the mixing machine 14 and weigh box 12 are supported upon the floor beams of the platform. This platform is supported in an elevated position by four corner legs 16 which are suliciently high to support the platform well above the ground to permit a wagon to drive beneath the same. At their upper ends each of the corner legs is bolted to a side plate 17 which plate in turn at its opposite end is bolted by suitable securing bolts 18 to the platform. The legs therefore are spaced a distance slightly greater than the width of th platform and, as will be seen from Fig. 2, are sufficiently spaced apart to straddle an ordinary railroad track. The lower ends of the legs are secured to suitable foot plates 19 which may rest upon cement blocks or other solid structures. The two front legs of the platform are braced by Suitable diagonally disposed bracing members 20 secured at their lower ends to the lower ends of the legs and at their upper ends to the end I beam of the platform. The front legs also at their bottoms are braced by a cross brace 21. Each of the rear legs is braced by a diagonally extending brace 22 extending from the bottom of the leg to one of the side I beams 15 of the platform. The legs as well as the braces thus described are all removably attached to the platform so that they may be detached therefrom when it is desired to disassemble the structure. for storage purposes. The bin 9 is suppo-rted above the latform and above the mixer 14 and weighing box 12, on four corner legs 23 which preferably are formed from angle irons and at their upper ends are removably secured to the four corners of the bin, these legs at their lower ends being ada ted to be removably bolted to the members 1 to which the platform legs are bolted. In addition to the four corner legs for the bin 9 I rovide on each side a pair of supporting egs 24 which converge at their lower ends to a bearing adapted to be secured on trunnions 26 extending laterally from the two side I beams 15 of the platform. The platform and other parts of the machine when disassembled are adapted to be carried upon a flat car of the ordinary flat type and to this 4 apart to permit the car to pass between the4 same. i

Material is delivered to the storage bin 9 by the conveyor chains 10 of the elevators 10 and 11 which are arran ed at op osite sides but in front of the platorm 15. hese conveyors operate in housings 30 which are formed in sections to permit disassembly thereof. The housings extend from beneath the Hoor of the car 27 through the floor and to a point above the bin 9. Each of these housings comprises a pluralityof sections, the lower sectlon 31 being provided with an offset hopper 32 to permit the material to be deposited therein and this lower section carries the ournal members 33 for the lower sprocket w eel 34 of the chain. A second section 35 of the housing is secured thereto by suitable angle irons or the like and extends through the Hoor of the car upwardly adjacent the side members 28 of the frame on the car and is secured to the side members 28 of the frame by means of an an le iron' 39 whereby this section of the housing will be supportedby the frame on theV car. The third and fourth intermediate sections are suitably secured together and support the top section 40. Thls top section 1s jointed to the next lower section of the housingat 41 by means of angle irons and the joint be\ tween these two sections is formed to intersect a suitable bearin 42 supported on an angle iron 43 on the ousing. Mounted to rotate in the bearin of each of the housings 1s a shaft 44 on eac end of which is the top sprocket 45 of the elevators. The elevators respectively discharge into inclined spouts 46 and 47 which in turn discharge into the bin 9. This bin is of the hopper bottom type and is divided intotwo compartments 48 and 49, dischargin through spouts 51 and 52 respectively whic are controlled by suitable gate valves 53 and 54 whereby the discharge of the contents of each hopper may be separately controlled.

Spouts 46 and 47 are so arranged that they will be caused to discharge both into either of the compartments 48 or 49 or separatel one into each compartment. To this end t e center wall 50 at its upper end is provided with a valve 55 which, as shown in Fig.I 5, may be swung to one side or the other so that the discharged contents of the spouts 46 and 47 will be deected into either of the bins 48 or 49. Or if desired the valve 55 may be moved to a central position whereby the discharging contents of the spout 46 will discharge into the bin 48 and the spout 47 will discharge into the bin 49. The upper end of each of the elevator housings is supported from a rearwardly extendin'g arm 56 secured to the upper end of the bin 9 and provided with a brace 57 so that by means of the arm 56 and the side member 28 the boot of each of the elevators will be rigidly supported in position.

The bucket 13 is provided with a bail 58 which depends from the beam of a weighing scale 59. This scale is supported from a trolley 60 which travels on a track 61 on cross arms 62 extendin between the legs 24 and the legs 23 of the in 9.

Power for the operatin mechanism including the mixer 14 and t e elevating conveyors 11 is supplied from a suitable engine 63 which is mounted on the car 27. This engine is connected by a belt 64 to a drive wheel 65 the shaft of which is supported in bearings 66 mounted on the legs 23 and its shaft is connected by a suitable sprocket chain 67 with a sprocket wheel 68 on the shaft 44. A similar sprocket chain 69 extends between the mixing machine 14 and the shaft driven by the drive wheel 65.

Removably mounted on top of the bin 9 is a crane the mast 70 of which extends vertically between the housings of the two conveyors and is suitably braced by a diagonally extending brace rod 71 removably bolted to the corners of the bin. The arm 7 2 of. this mast is arranged to carry a suitable pulley 73 and is braced by diagonally bracing arms 74. This crane is used for handling the heavy parts particularly of the housings and conve ors when the apparatus is disassembled an after these parts have been disassembled this crane itself may be disassembled for storage purposes.

The apparatus is shown in Fig. 1 in its assembled and operative position. In event it is desired to transport the apparatus to some other point the car is moved forward until the platform 15 lies immediately above the raised frame 28, the platform r15 being supported on the leg 16 sufficiently high to permit the frame 28 to pass beneath the same and the legs 16 being sufficiently spaced on each side of the track to permit the carto pass between the same. The various sections of the two elevators are then disassembled and lowered by means of the crane to be stored on the car after which the cam jacks 73, which are adapted when manipulated to engage with angle platforms 74 at the four corners of the frame 28, are manipulated to raise the latform 15 and take the weight of this plat orm and the parts carried there by olf of the legs 16. The legs are then ree IOL moved and stored in-suitable position on thc car and the bracing le s 23 of the bin 9 .are

removed leaving the by the legs 24 on the The trunnions 26.

' fr ont end of the platform 15 is provided -witli a removably mounted mast 75 having a pulley 76 over which a cable 77 is adapted to ass. This cable likewise passes over a pul i? 78 mounted on a. frame 79 secured to the ront end of the bin 9 and this cable leads to a hand winch 8O mounted in the framework supporting the platform 28 whereby by the manipulation of lthis winch the binmay be lowered to a horizontal position, indicated in dotted llines in Fig; 1, on the trunnions 26, after which the mast T5 may be disassembled. 'Ihe parts may then all be assembled on the cai' and transported to the point desired.

In assembling, desired and the the parts lhave been disassembled'are manipulated to lower thejplatforin on the frame will leave the vthe. frame 28 on the car.

-, said platfprm inclu ing a ,mixer and a material bin above. said mixer for delivering -`material thereto, detachable legs for supporting said platform on the ground so as to form a driveway -therebenea'th, the

width of said platform and the s acing of said legs being such as to permit t evehicle to pass under said platform between saidr ratus supported t ling P a storage platform on said vehicle of lea, a eight less than the height at which said material handling platform is supported said le for receiving said material han atform, and means for raising the mater1al-liandling latform and the appaliereby on the storage platform to permit the legs to be' inserted in and removed from position and lowering the mixer platform onto said legs to rmit the vehicle and storage platform to drawn from beneath the mixer platform.

2. In an apparatus of the character described, the combination with a vehicle, of a latform arranged to be carried on said ve- `cle,material-liandlin a paratus including a. mixer and a supply bin Ifior handling material to said mixer mounted on said platform, detachable legs arranged to be secured to in supported 'solely the car is run to the point4 cam jacks 73 which, after platform on the legs which` platform.

' and permitting a said platform, the width of said platform and spacing of "said legs being such as to permit the vehicle to pass beneath said platfori'n between said legs, means forelevating said latfoiml and theapparatus carried there yon" saidv vehicle and after f delivering material thereto mountedl on said v latform, powerj mechanism for said hanling apparatus mounted on saidcar, detachable legs arranged to be secured to said' platform on op osite sides of said car, the

width ofsaidp altforii and s acing of said legs being such as to permit t e car to pass beneath said platform between said legs,

.and means for elevatingy the4 platform on the' car to permit .the legs to be secured in position an'd shifting the weight of said platform and said material handling apparatus from saidcar to said legs to permit the ear to be withdrawn from beneath the 4. In'A an .apparatus of the character described, the, combination with a car, of a platform arranged to be carried on said car,

. apparatus mounted on said platform, a storage latform on 'said car for supporting theA mixing platform above the floor of the car, and a material stora e bin supported on saidplatform above sai mixing apparatus2 sup orting means for said bin having pivo connection with said platform'to permit said bin to be lowered from-a position abovesaid mixing apparatus' to a substantially horizontally position when said bin is not in'use.

i 5. In an apparatus of thechar'acter described, .the combination with a car,A of a' platform arranged to be carried ori-said car, mixing apparatus4 mounted on said latform, a storage bin hingedly mounted a ve said mixing apparatus, means for su orting said platform in ependentl'y of sai cai' said car to be moved from under said p tform, `a (power apparatus mounted on said car .for riving said mixing apparatus, and anelevating conveyor remova 1y supported at one end on said car and at its opposite end on said platform and arranged to deliver material into said stora bin.

gg. In an apparatus of the character described, the .combination with a transportin car, of 'a supporting platform arranged to carried by said oar, mixing apparatus mounted on said platform and a material storage bin `mounted above said mixing' apioo paratus and supported on said platform supporting legs for receiving the weight o sai platform to permit said car to be withdrawn from beneath the same, a pair of elevating conveyors detachably mounted into position and mounted within the side limits of said bin, the lower ends of said conveyors being supported by said car and projecting below the iplatform of said, car and the upper ends o said conveyors being supported by said platform and arranged to deliver into said storage bin, and power apparatus mounted on said car and connected with said mixing apparatus and with said elevators for operating the same.

7. In an apparatus of the character described, the combination with a platform supported above the ground to permit vevliicleste pass beneath thesame, of a mixing apparatus mounted on said platform, a material storage bin supported by said platform above said mixing apparatus and divided into compartments, a pair of elevatcharging ing c onve ors for e1evat' A material and dehvenngj; e same into said bin, .and means for causing both of said conveyors to dischar e into either of the compartments ofY said in.

8. In an apparatus of he characterv described, the combination with a platform elevated above the ground to permit vehicles to pass ben th the same, of a mixing appa.- ratus mounte on said platform, a material storage bin supported on said platform above said mixing a paratus and arranged to deliver thereto, said bin being divided into compartments, a pair of elevating conveyors for elevating material to said bin and distherein, a valve for delecting the materia discharged from said elevators into the different com artments of said bin.

In witness whereo I have hereunto set my hand at. Indianapolis Indiana, this 1st day of May, A. D. one thousand nine hundred and twenty two.

CARL F. HETHERINGTON.

paratus and supported on said platform supporting legs for receiving the weight oi sal platform to permit said car to be with drawn from beneath the same, a pair of elevating conveyors detachablyA mountedinto position and mounted within the side llmits of said bin, the lower ends of said conveyors being supported by said car and projecting below the latform of said car and the upper ends o said conveyors being suported by said platform and arranged to geliver into said storage bin, and power apparatus mounted on said car and connected with said mixing apparatus and with said elevators for operating the same.

7. In an apparatus of the character described, the combination with a platform supported above the ground to permit vehicles to pass beneath the same, of a mixing apparatus mounted on said platform, a material storage bin supported by said platform above said mixlng apparatus and divided into compartments, a pair of elevating conveyors for elevating material and delivering t e same into said bin, vand means for causing both of said conveyors to dischar said in. n

8. In an apparatus ofthe character described, the combination with a platform elevated above the ground to permit vehicles to pass beneath the same, of a mixing apparatus mounted on said platform, a material storage bin supported on said platform above said mixing a paratus and arranged to deliver thereto, said bin being divided into compartments, a pair of elevatin conveyors for elevating material to said bm and discharging therein, a valve for deecting the materia discharged from said elevators into the di'erent com artments of said bin. In witness whereo I have hereunto set my hand at Indianapolis Indiana, this 1st day of May, A. D. one thousand nine hundred and twenty two.

CARL F. HETHERINGTON.

Oerticate of Correction.

It is hereby @erased that 'in Letters Patent No. 1,548 014,

granted July 28, 1925,

lupon the application of Carl F. Hetherington, of Indianapolis2 Indiana', for an improvement in Pavement Plants, an error appears in the printed specification requiring correction as follows: Page 3, line 108, c

aim 4, after the word 'tion e into either of the compartments of insert' the words on the car floor; and that the said Letters Patent shoul be read with this correction "therein that the same may conform to the record of the case in the Patent Oiee. f

signed and sindy this 1a day of september, A. D; 1925.

KARL ralrlarire,y l Acting mnmssomr of Patents.

l Certificate of Correction, It is hereby certified that in Letters Patent No. 1,548,014, granted July 28, 1925,

upon the application of Carl F. Hetherngton, of Indianapolis, Indiana, for an improvement in Pavement Plants, an error appears in the printed specification requiring correction as follows: Page 3, line 108, claim 4, after the word tion insert' the words on the car jom'; and that the said Letters Patent shoul be read with this correction therein that the same may confor'm to' the record of the case in the Patent Oce.

Signed and sealed this 1st day of September, A. D. 1925.

{um} KARL FENNING,

loting Uommissiorwr of Patents, 

